feat: Remove local routing setting (#7462)

* remove client side router preference

* update e2e test

* fix comment

cypress/e2e/swap/settings.test.ts

@@ -9,7 +9,6 @@ describe('Swap settings', () => {
     cy.contains('Max. slippage').should('exist')
     cy.contains('Transaction deadline').should('exist')
     cy.contains('UniswapX').should('exist')
-    cy.contains('Local routing').should('exist')
     cy.get(getTestSelector('open-settings-dialog-button')).click()
     cy.contains('Settings').should('not.exist')
   })
@@ -28,7 +27,6 @@ describe('Swap settings', () => {
       .within(() => {
         cy.contains('Max. slippage').should('exist')
         cy.contains('UniswapX').should('exist')
-        cy.contains('Local routing').should('exist')
         cy.contains('Transaction deadline').should('exist')
         cy.get(getTestSelector('mobile-settings-close')).click()
       })

src/components/NavigationTabs/index.tsx

@@ -114,7 +114,7 @@ export function AddRemoveTabs({
           )}
         </AddRemoveTitleText>
         {children && <Box style={{ marginRight: '.5rem' }}>{children}</Box>}
-        <SettingsTab autoSlippage={autoSlippage} chainId={chainId} showRoutingSettings={false} />
+        <SettingsTab autoSlippage={autoSlippage} chainId={chainId} hideRoutingSettings />
       </RowBetween>
     </Tabs>
   )

src/components/RouterLabel/index.tsx

@@ -13,8 +13,10 @@ export default function RouterLabel({ trade, color }: { trade: SubmittableTrade;
       </UniswapXRouterLabel>
     )
   }
-  if (trade.quoteMethod === QuoteMethod.CLIENT_SIDE || trade.quoteMethod === QuoteMethod.CLIENT_SIDE_FALLBACK) {
+
+  if (trade.quoteMethod === QuoteMethod.CLIENT_SIDE_FALLBACK) {
     return <ThemedText.BodySmall color={color}>Uniswap Client</ThemedText.BodySmall>
   }
+
   return <ThemedText.BodySmall color={color}>Uniswap API</ThemedText.BodySmall>
 }

src/components/Settings/RouterPreferenceSettings/index.test.tsx

@@ -24,18 +24,4 @@ describe('RouterPreferenceSettings', () => {
     expect(uniswapXToggle).toHaveAttribute('aria-selected', 'false')
     expect(store.getState().user.userRouterPreference).toEqual(RouterPreference.API)
   })
-  it('toggles `Local Routing` router preference', () => {
-    render(<RouterPreferenceSettings />)
-
-    const localRoutingToggle = screen.getByTestId('toggle-local-routing-button')
-
-    fireEvent.click(localRoutingToggle)
-    expect(localRoutingToggle).toHaveAttribute('aria-selected', 'true')
-    expect(store.getState().user.userRouterPreference).toEqual(RouterPreference.CLIENT)
-
-    fireEvent.click(localRoutingToggle)
-
-    expect(localRoutingToggle).toHaveAttribute('aria-selected', 'false')
-    expect(store.getState().user.userRouterPreference).toEqual(RouterPreference.API)
-  })
 })

src/components/Settings/RouterPreferenceSettings/index.tsx

@@ -1,17 +1,15 @@
 import { Trans } from '@lingui/macro'
-import { useWeb3React } from '@web3-react/core'
 import Column from 'components/Column'
 import UniswapXBrandMark from 'components/Logo/UniswapXBrandMark'
 import { RowBetween, RowFixed } from 'components/Row'
 import Toggle from 'components/Toggle'
-import { isUniswapXSupportedChain } from 'constants/chains'
 import { useUniswapXDefaultEnabled } from 'featureFlags/flags/uniswapXDefault'
 import { useAppDispatch } from 'state/hooks'
 import { RouterPreference } from 'state/routing/types'
 import { useRouterPreference, useUserOptedOutOfUniswapX } from 'state/user/hooks'
 import { updateDisabledUniswapX, updateOptedOutOfUniswapX } from 'state/user/reducer'
 import styled from 'styled-components'
-import { Divider, ExternalLink, ThemedText } from 'theme/components'
+import { ExternalLink, ThemedText } from 'theme/components'
 
 const InlineLink = styled(ThemedText.BodySmall)`
   color: ${({ theme }) => theme.accent1};
@@ -23,81 +21,48 @@ const InlineLink = styled(ThemedText.BodySmall)`
 `
 
 export default function RouterPreferenceSettings() {
-  const { chainId } = useWeb3React()
   const [routerPreference, setRouterPreference] = useRouterPreference()
-  const uniswapXEnabled = chainId && isUniswapXSupportedChain(chainId)
   const dispatch = useAppDispatch()
   const userOptedOutOfUniswapX = useUserOptedOutOfUniswapX()
   const isUniswapXDefaultEnabled = useUniswapXDefaultEnabled()
   const isUniswapXOverrideEnabled = isUniswapXDefaultEnabled && !userOptedOutOfUniswapX
 
-  const uniswapXInEffect =
+  const uniswapXInEffect = routerPreference === RouterPreference.X || isUniswapXOverrideEnabled
-    routerPreference === RouterPreference.X ||
-    (routerPreference !== RouterPreference.CLIENT && isUniswapXOverrideEnabled)
 
   return (
-    <>
+    <RowBetween gap="sm">
-      {uniswapXEnabled && (
+      <RowFixed>
-        <>
+        <Column gap="xs">
-          <RowBetween gap="sm">
+          <ThemedText.BodySecondary>
-            <RowFixed>
+            <UniswapXBrandMark />
-              <Column gap="xs">
+          </ThemedText.BodySecondary>
-                <ThemedText.BodySecondary>
+          <ThemedText.BodySmall color="neutral2">
-                  <UniswapXBrandMark />
+            <Trans>When available, aggregates liquidity sources for better prices and gas free swaps.</Trans>{' '}
-                </ThemedText.BodySecondary>
+            <ExternalLink href="https://support.uniswap.org/hc/en-us/articles/17515415311501">
-                <ThemedText.BodySmall color="neutral2">
+              <InlineLink>Learn more</InlineLink>
-                  <Trans>When available, aggregates liquidity sources for better prices and gas free swaps.</Trans>{' '}
+            </ExternalLink>
-                  <ExternalLink href="https://support.uniswap.org/hc/en-us/articles/17515415311501">
+          </ThemedText.BodySmall>
-                    <InlineLink>Learn more</InlineLink>
+        </Column>
-                  </ExternalLink>
+      </RowFixed>
-                </ThemedText.BodySmall>
+      <Toggle
-              </Column>
+        id="toggle-uniswap-x-button"
-            </RowFixed>
+        // If UniswapX-by-default is enabled we need to render this as active even if routerPreference === RouterPreference.API
-            <Toggle
+        // because we're going to default to the UniswapX quote.
-              id="toggle-uniswap-x-button"
+        // If the user manually toggles it off, this doesn't apply.
-              // If UniswapX-by-default is enabled we need to render this as active even if routerPreference === RouterPreference.API
+        isActive={uniswapXInEffect}
-              // because we're going to default to the UniswapX quote.
+        toggle={() => {
-              // If the user manually toggles it off, this doesn't apply.
+          if (uniswapXInEffect) {
-              isActive={uniswapXInEffect}
+            if (isUniswapXDefaultEnabled) {
-              toggle={() => {
+              // We need to remember if a opts out of UniswapX, so we don't request UniswapX quotes.
-                if (uniswapXInEffect) {
+              dispatch(updateOptedOutOfUniswapX({ optedOutOfUniswapX: true }))
-                  if (isUniswapXDefaultEnabled) {
+            } else {
-                    // We need to remember if a opts out of UniswapX, so we don't request UniswapX quotes.
+              // We need to remember if a user disables Uniswap X, so we don't show the opt-in flow again.
-                    dispatch(updateOptedOutOfUniswapX({ optedOutOfUniswapX: true }))
+              dispatch(updateDisabledUniswapX({ disabledUniswapX: true }))
-                  } else {
+            }
-                    // We need to remember if a user disables Uniswap X, so we don't show the opt-in flow again.
-                    dispatch(updateDisabledUniswapX({ disabledUniswapX: true }))
-                  }
-                }
-                setRouterPreference(uniswapXInEffect ? RouterPreference.API : RouterPreference.X)
-              }}
-            />
-          </RowBetween>
-          <Divider />
-        </>
-      )}
-      <RowBetween gap="sm">
-        <RowFixed>
-          <Column gap="xs">
-            <ThemedText.BodySecondary>
-              <Trans>Local routing</Trans>
-            </ThemedText.BodySecondary>
-          </Column>
-        </RowFixed>
-        <Toggle
-          id="toggle-local-routing-button"
-          isActive={routerPreference === RouterPreference.CLIENT}
-          toggle={() =>
-            setRouterPreference(
-              routerPreference === RouterPreference.CLIENT
-                ? isUniswapXDefaultEnabled
-                  ? RouterPreference.X
-                  : RouterPreference.API
-                : RouterPreference.CLIENT
-            )
           }
-        />
+          setRouterPreference(uniswapXInEffect ? RouterPreference.API : RouterPreference.X)
-      </RowBetween>
+        }}
-    </>
+      />
+    </RowBetween>
   )
 }

src/components/Settings/index.test.tsx

@@ -1,5 +1,5 @@
 import { Percent } from '@uniswap/sdk-core'
-import { isSupportedChain } from 'constants/chains'
+import { isSupportedChain, isUniswapXSupportedChain } from 'constants/chains'
 import { mocked } from 'test-utils/mocked'
 import { fireEvent, render, screen, waitFor } from 'test-utils/render'
 
@@ -14,25 +14,38 @@ describe('Settings Tab', () => {
       mocked(isSupportedChain).mockReturnValue(true)
     })
 
-    it('renders routing settings when showRoutingSettings is true', async () => {
+    it('renders routing settings when hideRoutingSettings is false', async () => {
-      render(<SettingsTab showRoutingSettings={true} chainId={1} autoSlippage={slippage} />)
+      mocked(isUniswapXSupportedChain).mockReturnValue(true)
+      render(<SettingsTab hideRoutingSettings={false} chainId={1} autoSlippage={slippage} />)
 
       const settingsButton = screen.getByTestId('open-settings-dialog-button')
       fireEvent.click(settingsButton)
 
       await waitFor(() => {
-        expect(screen.getByTestId('toggle-local-routing-button')).toBeInTheDocument()
+        expect(screen.getByTestId('toggle-uniswap-x-button')).toBeInTheDocument()
       })
     })
 
-    it('does not render routing settings when showRoutingSettings is false', async () => {
+    it('does not render routing settings when hideRoutingSettings is true', async () => {
-      render(<SettingsTab showRoutingSettings={false} chainId={1} autoSlippage={slippage} />)
+      render(<SettingsTab hideRoutingSettings chainId={1} autoSlippage={slippage} />)
 
       const settingsButton = screen.getByTestId('open-settings-dialog-button')
       fireEvent.click(settingsButton)
 
       await waitFor(() => {
-        expect(screen.queryByTestId('toggle-local-routing-button')).not.toBeInTheDocument()
+        expect(screen.queryByTestId('toggle-uniswap-x-button')).not.toBeInTheDocument()
+      })
+    })
+
+    it('does not render routing settings when uniswapx is not enabled', async () => {
+      mocked(isUniswapXSupportedChain).mockReturnValue(false)
+      render(<SettingsTab hideRoutingSettings chainId={1} autoSlippage={slippage} />)
+
+      const settingsButton = screen.getByTestId('open-settings-dialog-button')
+      fireEvent.click(settingsButton)
+
+      await waitFor(() => {
+        expect(screen.queryByTestId('toggle-uniswap-x-button')).not.toBeInTheDocument()
       })
     })
   })

src/components/Settings/index.tsx

@@ -5,7 +5,7 @@ import { Scrim } from 'components/AccountDrawer'
 import AnimatedDropdown from 'components/AnimatedDropdown'
 import Column, { AutoColumn } from 'components/Column'
 import Row from 'components/Row'
-import { isSupportedChain, L2_CHAIN_IDS } from 'constants/chains'
+import { isSupportedChain, isUniswapXSupportedChain, L2_CHAIN_IDS } from 'constants/chains'
 import useDisableScrolling from 'hooks/useDisableScrolling'
 import { useOnClickOutside } from 'hooks/useOnClickOutside'
 import { Portal } from 'nft/components/common/Portal'
@@ -101,12 +101,12 @@ export default function SettingsTab({
   autoSlippage,
   chainId,
   trade,
-  showRoutingSettings = true,
+  hideRoutingSettings = false,
 }: {
   autoSlippage: Percent
   chainId?: number
   trade?: InterfaceTrade
-  showRoutingSettings?: boolean
+  hideRoutingSettings?: boolean
 }) {
   const { chainId: connectedChainId } = useWeb3React()
   const showDeadlineSettings = Boolean(chainId && !L2_CHAIN_IDS.includes(chainId))
@@ -124,6 +124,9 @@ export default function SettingsTab({
   useOnClickOutside(node, isOpenDesktop ? closeMenu : undefined)
   useDisableScrolling(isOpen)
 
+  const uniswapXEnabled = chainId && isUniswapXSupportedChain(chainId)
+  const showRoutingSettings = Boolean(uniswapXEnabled && !hideRoutingSettings)
+
   const isChainSupported = isSupportedChain(chainId)
   const Settings = useMemo(
     () => (

src/hooks/useDebouncedTrade.test.ts

@@ -34,7 +34,7 @@ beforeEach(() => {
 
   mocked(useIsWindowVisible).mockReturnValue(true)
   mocked(useAutoRouterSupported).mockReturnValue(true)
-  mocked(useRouterPreference).mockReturnValue([RouterPreference.CLIENT, () => undefined])
+  mocked(useRouterPreference).mockReturnValue([RouterPreference.API, () => undefined])
 })
 
 describe('#useBestV3Trade ExactIn', () => {
@@ -49,7 +49,7 @@ describe('#useBestV3Trade ExactIn', () => {
       TradeType.EXACT_INPUT,
       USDCAmount,
       DAI,
-      RouterPreference.CLIENT,
+      RouterPreference.API,
       /* account = */ undefined,
       /* inputTax = */ undefined,
       /* outputTax = */ undefined
@@ -69,7 +69,7 @@ describe('#useDebouncedTrade ExactOut', () => {
       TradeType.EXACT_OUTPUT,
       DAIAmount,
       USDC_MAINNET,
-      RouterPreference.CLIENT,
+      RouterPreference.API,
       /* account = */ undefined,
       /* inputTax = */ undefined,
       /* outputTax = */ undefined

src/hooks/useDebouncedTrade.ts

@@ -37,7 +37,7 @@ export function useDebouncedTrade(
   tradeType: TradeType,
   amountSpecified?: CurrencyAmount<Currency>,
   otherCurrency?: Currency,
-  routerPreferenceOverride?: RouterPreference.API | RouterPreference.CLIENT,
+  routerPreferenceOverride?: RouterPreference.API,
   account?: string,
   inputTax?: Percent,
   outputTax?: Percent
@@ -97,8 +97,7 @@ export function useDebouncedTrade(
   const skipBothFetches = !autoRouterSupported || !isWindowVisible || isWrap
   const skipRoutingFetch = skipBothFetches || isDebouncing
 
-  const skipPreviewTradeFetch =
+  const skipPreviewTradeFetch = skipBothFetches || isPreviewTradeDebouncing
-    skipBothFetches || routerPreference === RouterPreference.CLIENT || isPreviewTradeDebouncing
 
   const previewTradeResult = usePreviewTrade(
     skipPreviewTradeFetch,

src/pages/MigrateV2/MigrateV2Pair.tsx

@@ -739,11 +739,7 @@ export default function MigrateV2Pair() {
           <ThemedText.DeprecatedMediumHeader>
             <Trans>Migrate V2 liquidity</Trans>
           </ThemedText.DeprecatedMediumHeader>
-          <SettingsTab
+          <SettingsTab autoSlippage={DEFAULT_MIGRATE_SLIPPAGE_TOLERANCE} chainId={chainId} hideRoutingSettings />
-            autoSlippage={DEFAULT_MIGRATE_SLIPPAGE_TOLERANCE}
-            chainId={chainId}
-            showRoutingSettings={false}
-          />
         </AutoRow>
 
         {!account ? (

src/state/migrations.test.ts

@@ -13,7 +13,7 @@ const defaultState = {
   user: {},
   _persist: {
     rehydrated: true,
-    version: 1,
+    version: 2,
   },
   application: {
     chainId: null,

src/state/migrations.ts

@@ -3,6 +3,7 @@ import { MigrationConfig } from 'redux-persist/es/createMigrate'
 
 import { migration0 } from './migrations/0'
 import { migration1 } from './migrations/1'
+import { migration2 } from './migrations/2'
 import { legacyLocalStorageMigration } from './migrations/legacy'
 
 /**
@@ -17,6 +18,7 @@ import { legacyLocalStorageMigration } from './migrations/legacy'
 export const migrations: MigrationManifest = {
   0: migration0,
   1: migration1,
+  2: migration2,
 }
 
 // We use a custom migration function for the initial state, because redux-persist

src/state/migrations/2.test.ts

@@ -0,0 +1,62 @@
+import { createMigrate } from 'redux-persist'
+import { RouterPreference } from 'state/routing/types'
+import { SlippageTolerance } from 'state/user/types'
+
+import { migration1 } from './1'
+import { migration2, PersistAppStateV2 } from './2'
+
+const previousState: PersistAppStateV2 = {
+  user: {
+    userLocale: null,
+    // @ts-ignore this is intentionally a string and not the `RouterPreference` enum because `client` is a deprecated option
+    userRouterPreference: 'client',
+    userHideClosedPositions: false,
+    userSlippageTolerance: SlippageTolerance.Auto,
+    userSlippageToleranceHasBeenMigratedToAuto: true,
+    userDeadline: 1800,
+    tokens: {},
+    pairs: {},
+    timestamp: Date.now(),
+    hideBaseWalletBanner: false,
+  },
+  _persist: {
+    version: 1,
+    rehydrated: true,
+  },
+}
+
+describe('migration to v2', () => {
+  it('should migrate users who currently have `client` router preference', async () => {
+    const migrator = createMigrate(
+      {
+        1: migration1,
+        2: migration2,
+      },
+      { debug: false }
+    )
+    const result: any = await migrator(previousState, 2)
+    expect(result?.user?.userRouterPreference).toEqual(RouterPreference.API)
+    expect(result?._persist.version).toEqual(2)
+  })
+
+  it('should not migrate non-client router preference', async () => {
+    const migrator = createMigrate(
+      {
+        1: migration1,
+        2: migration2,
+      },
+      { debug: false }
+    )
+    const result: any = await migrator(
+      {
+        ...previousState,
+        user: {
+          ...previousState.user,
+          userRouterPreference: RouterPreference.X,
+        },
+      } as PersistAppStateV2,
+      2
+    )
+    expect(result?.user?.userRouterPreference).toEqual(RouterPreference.X)
+  })
+})

src/state/migrations/2.ts

@@ -0,0 +1,29 @@
+import { PersistState } from 'redux-persist'
+import { RouterPreference } from 'state/routing/types'
+import { UserState } from 'state/user/reducer'
+
+export type PersistAppStateV2 = {
+  _persist: PersistState
+} & { user?: UserState }
+
+/**
+ * Migration to move users who have local routing as their router preference to API
+ * since forced local routing is now deprecated
+ */
+export const migration2 = (state: PersistAppStateV2 | undefined) => {
+  // @ts-ignore this is intentionally a string and not the `RouterPreference` enum because `client` is a deprecated option
+  if (state?.user && state.user?.userRouterPreference === 'client') {
+    return {
+      ...state,
+      user: {
+        ...state.user,
+        userRouterPreference: RouterPreference.API,
+      },
+      _persist: {
+        ...state._persist,
+        version: 2,
+      },
+    }
+  }
+  return state
+}

src/state/reducer.ts

@@ -44,7 +44,7 @@ export type AppState = ReturnType<typeof appReducer>
 
 const persistConfig: PersistConfig<AppState> = {
   key: 'interface',
-  version: 1, // see migrations.ts for more details about this version
+  version: 2, // see migrations.ts for more details about this version
   storage: localForage.createInstance({
     name: 'redux',
   }),

src/state/routing/slice.ts

@@ -19,7 +19,7 @@ import {
   URAQuoteResponse,
   URAQuoteType,
 } from './types'
-import { isExactInput, shouldUseAPIRouter, transformRoutesToTrade } from './utils'
+import { isExactInput, transformRoutesToTrade } from './utils'
 
 const UNISWAP_API_URL = process.env.REACT_APP_UNISWAP_API_URL
 if (UNISWAP_API_URL === undefined) {
@@ -121,73 +121,69 @@ export const routingApi = createApi({
         )
       },
       async queryFn(args, _api, _extraOptions, fetch) {
-        let fellBack = false
         logSwapQuoteRequest(args.tokenInChainId, args.routerPreference, false)
         const quoteStartMark = performance.mark(`quote-fetch-start-${Date.now()}`)
-        if (shouldUseAPIRouter(args)) {
-          fellBack = true
-          try {
-            const { tokenInAddress, tokenInChainId, tokenOutAddress, tokenOutChainId, amount, tradeType } = args
-            const type = isExactInput(tradeType) ? 'EXACT_INPUT' : 'EXACT_OUTPUT'
-
-            const requestBody = {
-              tokenInChainId,
-              tokenIn: tokenInAddress,
-              tokenOutChainId,
-              tokenOut: tokenOutAddress,
-              amount,
-              type,
-              intent: args.routerPreference === INTERNAL_ROUTER_PREFERENCE_PRICE ? 'pricing' : undefined,
-              configs: getRoutingAPIConfig(args),
-            }
-
-            const response = await fetch({
-              method: 'POST',
-              url: '/quote',
-              body: JSON.stringify(requestBody),
-            })
-
-            if (response.error) {
-              try {
-                // cast as any here because we do a runtime check on it being an object before indexing into .errorCode
-                const errorData = response.error.data as { errorCode?: string; detail?: string }
-                // NO_ROUTE should be treated as a valid response to prevent retries.
-                if (
-                  typeof errorData === 'object' &&
-                  (errorData?.errorCode === 'NO_ROUTE' || errorData?.detail === 'No quotes available')
-                ) {
-                  sendAnalyticsEvent('No quote received from routing API', {
-                    requestBody,
-                    response,
-                    routerPreference: args.routerPreference,
-                  })
-                  return {
-                    data: { state: QuoteState.NOT_FOUND, latencyMs: getQuoteLatencyMeasure(quoteStartMark).duration },
-                  }
-                }
-              } catch {
-                throw response.error
-              }
-            }
-
-            const uraQuoteResponse = response.data as URAQuoteResponse
-            const tradeResult = await transformRoutesToTrade(args, uraQuoteResponse, QuoteMethod.ROUTING_API)
-            return { data: { ...tradeResult, latencyMs: getQuoteLatencyMeasure(quoteStartMark).duration } }
-          } catch (error: any) {
-            console.warn(
-              `GetQuote failed on Unified Routing API, falling back to client: ${
-                error?.message ?? error?.detail ?? error
-              }`
-            )
-          }
-        }
         try {
-          const method = fellBack ? QuoteMethod.CLIENT_SIDE_FALLBACK : QuoteMethod.CLIENT_SIDE
+          const { tokenInAddress, tokenInChainId, tokenOutAddress, tokenOutChainId, amount, tradeType } = args
+          const type = isExactInput(tradeType) ? 'EXACT_INPUT' : 'EXACT_OUTPUT'
+
+          const requestBody = {
+            tokenInChainId,
+            tokenIn: tokenInAddress,
+            tokenOutChainId,
+            tokenOut: tokenOutAddress,
+            amount,
+            type,
+            intent: args.routerPreference === INTERNAL_ROUTER_PREFERENCE_PRICE ? 'pricing' : undefined,
+            configs: getRoutingAPIConfig(args),
+          }
+
+          const response = await fetch({
+            method: 'POST',
+            url: '/quote',
+            body: JSON.stringify(requestBody),
+          })
+
+          if (response.error) {
+            try {
+              // cast as any here because we do a runtime check on it being an object before indexing into .errorCode
+              const errorData = response.error.data as { errorCode?: string; detail?: string }
+              // NO_ROUTE should be treated as a valid response to prevent retries.
+              if (
+                typeof errorData === 'object' &&
+                (errorData?.errorCode === 'NO_ROUTE' || errorData?.detail === 'No quotes available')
+              ) {
+                sendAnalyticsEvent('No quote received from routing API', {
+                  requestBody,
+                  response,
+                  routerPreference: args.routerPreference,
+                })
+                return {
+                  data: { state: QuoteState.NOT_FOUND, latencyMs: getQuoteLatencyMeasure(quoteStartMark).duration },
+                }
+              }
+            } catch {
+              throw response.error
+            }
+          }
+
+          const uraQuoteResponse = response.data as URAQuoteResponse
+          const tradeResult = await transformRoutesToTrade(args, uraQuoteResponse, QuoteMethod.ROUTING_API)
+          return { data: { ...tradeResult, latencyMs: getQuoteLatencyMeasure(quoteStartMark).duration } }
+        } catch (error: any) {
+          console.warn(
+            `GetQuote failed on Unified Routing API, falling back to client: ${
+              error?.message ?? error?.detail ?? error
+            }`
+          )
+        }
+
+        try {
           const { getRouter, getClientSideQuote } = await import('lib/hooks/routing/clientSideSmartOrderRouter')
           const router = getRouter(args.tokenInChainId)
           const quoteResult = await getClientSideQuote(args, router, CLIENT_PARAMS)
           if (quoteResult.state === QuoteState.SUCCESS) {
-            const trade = await transformRoutesToTrade(args, quoteResult.data, method)
+            const trade = await transformRoutesToTrade(args, quoteResult.data, QuoteMethod.CLIENT_SIDE_FALLBACK)
             return {
               data: { ...trade, latencyMs: getQuoteLatencyMeasure(quoteStartMark).duration },
             }

src/state/routing/types.ts

@@ -16,7 +16,6 @@ export enum TradeState {
 export enum QuoteMethod {
   ROUTING_API = 'ROUTING_API',
   QUICK_ROUTE = 'QUICK_ROUTE',
-  CLIENT_SIDE = 'CLIENT_SIDE',
   CLIENT_SIDE_FALLBACK = 'CLIENT_SIDE_FALLBACK', // If client-side was used after the routing-api call failed.
 }
 
@@ -27,7 +26,6 @@ export const INTERNAL_ROUTER_PREFERENCE_PRICE = 'price' as const
 export enum RouterPreference {
   X = 'uniswapx',
   API = 'api',
-  CLIENT = 'client',
 }
 
 export interface GetQuoteArgs {

src/state/routing/utils.ts

@@ -339,7 +339,3 @@ export function isSubmittableTrade(trade?: InterfaceTrade): trade is Submittable
 export function isUniswapXTrade(trade?: InterfaceTrade): trade is DutchOrderTrade {
   return trade?.fillType === TradeFillType.UniswapX
 }
-
-export function shouldUseAPIRouter(args: GetQuoteArgs): boolean {
-  return args.routerPreference !== RouterPreference.CLIENT
-}

src/test-utils/constants.ts

@@ -48,7 +48,7 @@ export const TEST_TRADE_EXACT_INPUT = new ClassicTrade({
   tradeType: TradeType.EXACT_INPUT,
   gasUseEstimateUSD: 1.0,
   approveInfo: { needsApprove: false },
-  quoteMethod: QuoteMethod.CLIENT_SIDE,
+  quoteMethod: QuoteMethod.CLIENT_SIDE_FALLBACK,
   inputTax: ZERO_PERCENT,
   outputTax: ZERO_PERCENT,
 })
@@ -80,7 +80,7 @@ export const TEST_TRADE_EXACT_OUTPUT = new ClassicTrade({
   ],
   v2Routes: [],
   tradeType: TradeType.EXACT_OUTPUT,
-  quoteMethod: QuoteMethod.CLIENT_SIDE,
+  quoteMethod: QuoteMethod.CLIENT_SIDE_FALLBACK,
   approveInfo: { needsApprove: false },
   inputTax: ZERO_PERCENT,
   outputTax: ZERO_PERCENT,